import React from 'react';
import ReactDOM from 'react-dom';
import * as serviceWorker from './serviceWorker';
//https://www.bilibili.com/video/BV1oz411q7YW/
// import SimpleCalculator from "./SimpleCalculator"
import Layout from './conponment/Layout';
ReactDOM.render(
  <Layout />,
  // <SimpleCalculator />,
  document.getElementById('root')
);

// If you want your app to work offline and load faster, you can change
// unregister() to register() below. Note this comes with some pitfalls.
// Learn more about service workers: https://bit.ly/CRA-PWA
serviceWorker.unregister();
